I also created a new page with the charts you can find on the Google Spreadsheet. I’m a particular fan of the sliding time-series chart. The colour coded trailing averages make for an interesting way to gauge the depth and severity of past recessions.

Is there a way to switch the graph to a log scale? Looking at data over a very long amount of time on a linear scale is not that useful. For example, on a log scale graph, a constant rate of increase (e.g. due to inflation) is a straight line rather than a curve.